Finding the Third Proportional to 1,216,632 and 2,647,317

Step by Step Solution

1. Step 1: Write the proportion equation
   1,216,632 : 2,647,317 = 2,647,317 : x
2. Step 2: Convert to fraction form
   1,216,632/2,647,317 = 2,647,317/x
3. Step 3: Cross multiply
   1,216,632x = 2,647,317 × 2,647,317
4. Step 4: Simplify right side
   1,216,632x = 7,008,287,298,489
5. Step 5: Solve for x
   x = 7,008,287,298,489/1,216,632
6. Step 6: Final answer
   x = 5,760,400.27